Plasterer s hawk



(No Model.)

J. M. DAVIS. PLAS'I 'ERERS HAWK.

No.534,741. Patented Feb.26 ,1 89,5.

JOHN MARTIN DAVIS, OF GREAT FALLS, MONTANA.

PLASTERERS'HAWK.

SPECIFICATION forming part of Letters Patent No. 534,741, dated February26, 1895.

Application filed May 9, 1894. Serial No. 610,6 2 (No model.)

To aZZ whom, it may concern.-

Be it known that 1, JOHN MARTIN DAVIS, a citizen of the United States ofAmerica, residing at Great Falls, in the county of Cascade and State ofMontana, have invented certain new and useful Improvements in PlasterersHawks, of which the following is a specification, reference being hadtherein to the accompanying drawings.

Heretofore plasterers hawks have been constructed of a board having-adovetail shaped mortise in the rear side extending v transversely of thegrain or the fibers of the wood. A corresponding shaped cleat of wood isdriven into this mortise to strengthen and prevent warping of the board,and a handle is permanently attached to the hawk usually by having atenon at its end, which is fitted into a mortise in the cleat and theboard. A hawk of this construction can only be made by a skilledmechanic andhaving the handles permanently attached is unhandy and makesa bulky package.

The purpose of this invention is to provide a hawkhavin g a detachablehandle which can be readily removed and quickly attached to the board atwill, and which when in place will be firm and rigid; also to devisemeans whereby any board of suitable dimensions can be converted into ahawk by the attachment thereto of the provisions hereinafter moreparticularly set forth.

In the annexed drawings,Figu-re 1 is a bottom perspective view of a hawkshowing the application of the invention. Fig. 2 is a detail View of thehandle. Fig. 3 is a view of the plate. Fig. at is a detail view of aportion of the hawk board showing the metal wear plate in position.

A represents the hawk board which is usually about twelve by twelveinches square and tapers in thickness from about four inches from eachedge outward to the edges to reduce the weight.

B is a metal plate of sufficientthickness to give stability to the boardand prevent warping.' This plate is long and narrow and tapers in widthfrom a short distance from each end and has openings to receive thescrews or similar fastenings a by means of which it is fastened to theboard. An opening 0 is provided about the center of the plate to reingto the length of the lips e thereby facilitating the attachment of thehandles to the board.

The handle is tubular and has its end notched, the portions between thenotches being turned outward at about right angles to provide the. lipsd which correspond in position and number with the notches b to passthrough the same in the operation of attacl1- ing and removing thehandle. One end of the lip is beveled to facilitate the entrance underthe lips e.

A wear plate is attached to the board A opposite the opening 0 toreceive the end thrust of the handle and prevent the same cutting intothe soft board. Plate B is not mortised into the board but fastened onthe un der side thereof crosswise of the grain and the middle portion isslightly bulged to cause the lips e to stand out a proper distancetoreceive the lips d. To attach the handle the lips 11 are brought inregister with the notches b through which they pass, the handle beinggiven a turn to cause the lips d to pass beneath the lips e by which thehandle is retained in place. If desired interlocking projections may beprovided in the opposing faces of the lips d and c to retain in placeagainst accidental displacement. To detach the handle the reverse of theoperation just described is practiced.

opposite the said central opening and a handle removably attached to thehawk-board and having lateral extensions corresponding in position andnumber with the notches in the flat metal plate through which they pass1o eral extensions to be passed through the said notches and engagedwith the lips, substan tially'as described andyfor the purposespecified.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN MARTIN DAVIS.

WVitnesses:

WM. W. OONNER, Jos. HAMILTON.

